Yang Xingmi 楊行密, regional inspector (cishi 刺史) of Luzhou 廬州 as follower of the military commissioner (jiedushi 節度使) of Huainan 淮南 (north of modern Jiangsu), Gao Pian 高駢, showed his military talent and power during the fights in the Yangtse-Huainan area. In 892 he was installed as military commissioner and engaged in several fieceful campaigns against the empire of Later Liang (Houliang 後梁) in the north and Wu-Yue 吳越 in the southeast. Although the region of the lower Yangtse area is very rich and abundand by natural resources, the permanent warfare contributed to the devastation of this region. From 902 on, when he was officially enfeoffed as king of Wu 吳, he started to reconstruct the economy. After his dead in 905 (posthumous Wu Taizu 吳太祖 - see titles of emperors), his sons and successors were controlled by mighty generals like Zhang Hao 張顥 and Xu Wen 徐溫. Yang Xingmi’s son Yang Pu 楊溥 (posthumous Wu Ruidi 吳睿帝) proclaimed himself emperor in 927. Xu Wen’s son Xu Zhihao 徐知浩 deposed Yang Pu and founded his own dynasty called Qi 齊 (i.e. Southern Tang, Nantang 南唐) in 937.